I purchased 2 Montana 750i GPS units. They both exhibited the same problem: When putting the units in Expedition Mode, the units shut off.
In a properly working unit, Expedition Mode puts the unit into a low-battery state and a green light flashes at regular intervals. A user can still receive messages in Expedition Mode. Both of my units remained in Expedition Mode for about 15 minutes before shutting completely down.
The only way to power the unit back up was to remove the battery and re-insert it or hold down the power-on button for an extended period of time.
The reason this feature is important to me is because it extends battery life a ton. Because the feature failed, I had to keep the unit on at all times which meant frequent charging by running my F350 truck...expensive. And, I could not leave camp on an extended trip.
There's more.
The unit also showed a warning message every 15 seconds or so saying that it had lost satellite reception. This could not possibly be an accurate and true warning because there were 3 other members in our group with other Garmin GPS units, (different models), that had no problems with satellite reception. Additionally, the unit worked great with no "lost satellite" warnings until the Expedition Mode problem started. The false message invariably drained the battery even further because it would illuminate the screen every 15 seconds.
I would like Garmin to send a free Montana 750i to me that works.
